Transaction not yet indexed

5k66FWLAA7xgpSVnWGG5mkmLSCB5ZSgXMiW6bBeCP81byRH3ThqUcqoDcSkh8o6X61aJzmTXfJqKXRPUC4nbq8EZ

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.